Grassland water can raise fish

Quick answer：

The phrase 'Grassland water can raise fish' appears to be a misunderstanding or a misinterpretation. Karesansui, or dry landscape gardening, is a form of Japanese Zen rock garden that uses rocks, gravel, or sand arranged to represent a landscape. It is not designed for fish farming. In traditional karesansui gardens, the absence of water is a deliberate design choice and does not support aquatic life such as fish.